Apparatus for making shingles from paper-pulp.



J. T. COLLIN S. AKING SHINGLES FROM PAPER PULP.

' APPLIUATIOH FILED MAY 13, 1908. 928,501.

APPARATUS FOR M Patented July 20, 1909.

INVENTOR,

A TTORNE Y.

JOHN T. COLLINS, OF HARTFORD, CONNECTICUT.

APPARATUS FOR MAKING SHINGLE rnoiii PAPER-PULP.

Application filed May 13, 1908.

Specification of Letters Patent.

Patented July 20, 1909.

Serial No. 432,687.

To all whom it may concern:

Be it known that l, Jolm T'. COLLINS, a citizen of the Unitedrltates ofAmerica, and

resident of Hartford, in the county of Hartford and State ofConnecticut, have invented certain new and useful improven'ients inApparatus for Making Shingles fromv Paper-Pulp, of which the followingis a full, clear, and exact description.

The object of this invention is to devise means for the production ofshingles from sheeted. paper pulp, and the invention consists in a pairof relatively movable dies of rectangular form having plane faces,which, in the closed relations of the dies, are inclined one to theother corresponding to the taper of the shingle, and blades at one endand at opposite sides, each carried by one of the dies for cutting out aportion from a pulp sheet for constituting a shingle which, by thecompression of the dies there on makes a shingle of the usual shape.

The apparatus is illiiistrated in the accompanying drawings, in which,-

Figure 1 is a plan view of the dies closed; Fig. 2 is a centrallongitudinal section as taken on line 2-2, Fig. 1; Fig. 3 is a sideelevation, the movable die being represented as partially open; Fig..lis an end view of the dies in closed relations; and Fig. is aperspective view of the shingle.

Similar characters of reference indicate corresponding parts in all ofthe views.

In the drawings A represents a rectangu lar base or bed die and B anupper die of corresponding form and dimensions, such dies beingconnected at their ends by a heavy and strong hinge 7). The workingfaces LT? and m of the base die and upper movable die are, when thedie.are closed as shown in Fig. 2, slightly inclined, one in relation to theother and toward their hinged end corresponding to the taperof theshingle to be produced. The movable die has opposite side blades C Csecured to theedges, and extending the whole length of the body of theupper die and such upper die also has a transversely arranged blade D,made with a convex cutting edge, at its end which is the farther fromthe hinge, said blades having shearing actions, as the one die is closedtoward the other in conjunction with the edges of, and at the oppositesides and outer end of the base die.

In making shingles by the utilization of the above described apparatus,I employ paper pulp which has been produced in sheet form having athickness as great, or slightly greater than the thickness of theshingle at 'ts butt end, which sheeted pulp preparatory to beingsubjected to the-action of the dies is softened by steaming, orotherwise moistening, and the sheet of pulp is introduced and properlypositioned on the bed die while the upper die is moved to its fullyopened position, that is one in which the movable die is aboutperpendicular to the lower die; then by imparting a closing action tothe upper die the moistened sheeted paper pulp is compressed,comparatively slightly at the end of the dies farthest from the hinge,and increasingly toward the hinge, and the opposite longitudinal edgesof the shingle, and its butt end are squarely trimmed by the shearingactions of the blades C G and D. The straight edged blades C C naturallyexert the shearing action for cutting out or trimming the shingle as apparcnt in Fig. 3, while an efficient shearing action by the end bladeI) is acquired by making it with its edge contact as particularly shownin Fig. 4. The shingle produced by these dies is one in which the pulpin the sheet may be of uniform thickness, and the manufactured shinglehas the substance from which it is composed compressed to greaterdensity at its attenuated portion than at its thick end.

1. In an apparatus for the purpose described, the combination of arectangular base die, and a movable rectangular upper die which at itsone end is hinge connected to the end of the base die, the approachingfaces of said dies being inclined one in relation to the other, towardtheir hinged ends, corresponding to the taper of the shingle, themovable die having opposite side blades and a transversely arrangedblade at its end oppositeits hinged end, said blades coacting with theedges of the base die at the opposite sides and outer end of such die.

21in an apparatus for the purpose described, the combination of arectangular base die and a movable rectangular upper die, hingeconnected to the end of the base die, the faces of said dies beinginclined one in relation to the other, toward their hinged ends, themovable die having opposite side blades, and a transversely arrangedblade, having a convex cutting edge, at its end farther from its hingedend, said blades having shearing actions in conjunction with the edgesat the opposite sides and outer end of the base die.

Signed by me at Springfield, Mass, in presence of two subscribingwitnesses.

JOHN T. COLLINS.

lVitnesses \VM. S. BnnLows, G. R. DniscoLL.

